Amount of costs incurred to date for the specified restructuring cost.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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Restructuring Charges and Cost Savings Initiatives (Schedule Of Restructuring Charges Associated With Each Reportable Segment) (Details) - 2015 Initiatives [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 29, 2017	Jan. 31, 2016	Jan. 29, 2017	Jan. 31, 2016	Jul. 31, 2016	Aug. 02, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 2	$ 19	$ 11	$ 55	$ 82	$ 124
Restructuring and Related Cost, Cost Incurred to Date	217		217
Americas Simple Meals and Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		0
Restructuring and Related Cost, Cost Incurred to Date	71		71
Global Biscuits and Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	(1)		2
Restructuring and Related Cost, Cost Incurred to Date	68		68
Campbell Fresh [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		0
Restructuring and Related Cost, Cost Incurred to Date	2		2
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	3		9
Restructuring and Related Cost, Cost Incurred to Date	$ 76		$ 76